Evrnace-hopper



V. MACKAY.

FURNACE HOPPER.

APPLICATION FILED APR, 24. 1911.

' UNITED STATES PATENT OFFICE.

VASIL MAOKAY, OF HUDSON, MASSACHUSETTS.

FURNACE-HOPPER.

Specification of Letters Patent.

Application filed April 24, 1917. Serial No. 164,298.

feeding fuel to said furnaces and consists,

primarily, in a hopper which is attached to a door in the front of the furnace and which is so constructed as to be adapted 5 to feed the coal by gravity through an opening in the front of the furnace,- and also is so constructed that the fuel in the hopper maybe forced through said opening into the furnace by reason of the peculiar formation and construction of said hopper.

The object of the invention is to provide a hopper of the class set forth which may be attached to the fire door of a furnace and which is so constructed that it"is capable of being attached to a fire door of the particular type of furnace in which the boiler projects to a considerable extent beyond the front plate of the furnace as is customary in certain classes of furnaces. 0 The device of this invention is capable of being used "with a variety of different styles of furnaces and with furnaces havinw what is known as a feeding grate or with furnaces ha'ving grates which are not feeding grates.

The invention consists in the combination and arrangement of parts set forth in the followingspecification and particularly pointed out in the claims thereof. 10 Referring to the drawings:

Figure 1 1s a'front view of a furnace with my improved hopper attached thereto.

Fig. 2 is a side elevation of the same broken away and shown in section.

Like numerals refer to like parts throughout the several views of the drawings.

In the drawings, 1 represents a furnace and 2 the boiler thereof. 3 is the grate, 4 are fuel openings in the front 5 of said furnace and 6 are swing doors of usual construction extending across the fuel openings 4 the doors being formed with openings correspondingly to said openings 4. are hoppers, each opper consisting of a flanged portion 8 which is fastened to the front of the doort and a bodv ortion consisting of a top 9, sides 10 and bottom 11. The bottom portion 11 comprises an inclined portion 12 and a substantially vertical portion 13. The vertical portion 13 has an opening 14 therein and a door 15 pivotally attached to the hopper extends across the opening 14. The doors are preferably piv otally supported.

' The inclined portion 12, it will be noted, extends downwardly beyond the inner face of the vertical portion 13 so that the coal, as it passes down the hopper, will be directed toward the fuel opening 4 and will be revented by the extension 12 of the inclined portion 12 from dropping down against the inside of the door 15 and, therefore, from falling out of the hopper when the door 15 is opened.

An auxiliary door 16 is provided which, upon being opened, affords a view of the fuel in order that the condition of the same may be observed, and attended to by means of a hoe or poker. 17 is the ashpit door and 18 the ashpit.

The operation of the device is as follows: The coal is shoveled into the hopper 7 and passes, by reason of gravity, down the inclined ortion 12 of the bottom 11 and passes t rough the opening 4 onto the grate 3. Any coal which does not flow freely from the hopper onto the grate may be pushed out of the hopper by opening the door 15 and forcing the coal through the opening 4 by means of a hoeor other suitable tool.

It is evident from the construction of hopper hereinbefore described that the same may be attached to different styles of doors and is thus capable of being used in connection with furnaces already installed as well as with new furnaces.

While I'prefer to employ a door 15 to close an opening 14 it is evident that, if desired, the door 15 may be omitted and in such a case the opening 14 would be blocked up by the coal in the hopper so that there will be no in-rush nace throu h the opening 14,

Having 1; us described my invention, what I claim and desire by Letters Patent to secure is:

1. A furnace havingiin combination a fuel opening, a swinging oor for said opening, and having an opening coinciding with the latter, a fuel hopper attached exteriorly to said door and having its lower portion formed with a horizontal stretch and. an

of air to the fur- Patented Sept. 23, 1919.

upper inclined stretch relative thereto and also provided With an opening between said stretches.

2. A furnace having in combination a. fuel opening, a swinging door for said opening, and having an opening coinciding with the latter, a fuel hopper attached exteriorly to said door and having its lower portion formed with a horizontal stretch and an up-;

per inclined stretch relative thereto and also provided with an opening between said stretches, the inclined stretch overhanging the horizontal stretch inwardly beyond the opening therebetween.

3. A furnace having, front plate provided with a fuel opening, a door pivoted to said front plate and arranged in front of said opening, said door having an opening therethrough, a fuel hopper attached to said door and extending across said opening, the under side of said hopper having inclined horizontal and substantially vertical faces and an opening inin combination, a

- nesses.

a fuel hoptially vertical face and a door in saidverti- I, I cal face in alinement with said fuel open-t ing, said inclined. face extending downwardly beyond the inner face of said last mentioned door whereby fuel will be'di- 'rected beyond and away from said last named door and whereby unobstructed ac- .cess to fuel in saidhopper maybe obtained and said fuel manually forced from said hopper through said opening. 1

'5. A furnace having, in combination, 'a.-

front'plate provided with a fuel opening, a door pivoted to said ranged in front of said opening, said door having an opening therethrough. a fuel hopper attached to said door across said opening, the under side of said hopper having an inclined and a substantially vertical face, said vertical face being provided with'an opening in alinement with said fuel opening, said inclined face extending outwardly beyond th inner face of said vertical face, whereby fuel will be.

directed beyond and away from said vertical face and whereby unobstructed access to fuel in said hopper may be obtained and said fuel manually forced from said hopper through said opening, v

In testimony whereof I have hereunto set my hand inpresence of two subscribing wit- VASIL MAoKAY. vWitnesses: v

CHARLES S. Goonnvo, SYDNEY E. TAFT.

front plate and arand extending 

